"Nightmare"

…

Looking back upon my past

I find myself ashamed

Of who I was, I see at last

My conscience is eternally maimed

…

How could I have been so fully blind

To what I had come to be?

Why did it take to so long to find

The evil that lived in me?

…

I was spiteful, angry, full of hate

I know I went too far

And rightfully it is my fate

That I alone should carry the scars

…

So whatever the problem, never succumb

Please live carefully

Never allow yourself to become

The Nightmare I used to be

…

Author's Note: this is mostly about regret and guilt. For my second rhyming poem ever, I think it is rather good. Reviews are very much appreciated.